Sure! Here are some happy boy rhymes:
glad lad
happy rhymes with nappy
Snappy joy? See the Related Questions below.
Sorry to disappoint you but there is no other word for happy that rhymes with it.
Something that rhymes with happy bee could be sappy flea.
crappy
happy ways and happy rhyme!
boy-o-boy
There are no perfect rhymes for the word nappies.
boy!
joy
One possible boy name that rhymes with Pearl is Earl.